[Elecraft] K4 to KPA500?

[Rick Bates, NK7I]

Which antenna port on the KPA1500 are you using? Port 2 is disconnected 
at power off.

That's one small nit with the amp, the antenna switch and tuner are on 
the same power source as the amp; all or nothing.  It takes getting used 
to, after being familiar with the KPA500/KAT500 combo.

73,
Rick NK7I

On 2/22/2022 7:13 AM, Dave wrote:
> Bob
>
> There has been a thread on the K4 groups.io on this subject. There is much
> more info concerning the K4 on there. While mine works correctly, some
> don’t. I think a pin needs cutting off, you might check with a breakout box.
>
> 73 Dave G4AON
>
> On Tue, 22 Feb 2022 at 14:53, Robert Sands<k7voradio at gmail.com>  wrote:
>
>> My old cable, used with K3 and KPA500 works fine with K4 to KPA 1500
>> except the K4 receive is shut down when 1500 in off, regardless of cable or
>> use of interruptor. Ideas?
>>
>> Happens Only on 40 and 75, not 20. No receive until 1500 is on. I also
>> tried the new cable.
>> Bob
>> K7VO
>>
>> On Tue, Feb 22, 2022, 5:27 AM Dave<dave.g4aon at gmail.com>  wrote:
>>
>>> No difference between using the K3 and K4. I use the same interconnection
>>> cable that I used for the K3.
>>>
>>> The K4 shows the power level against the power control knob as appropriate
>>> when you go from standby to operate.
>>>
>>> Power setting/control with the K4 and KPA500 is well controlled.
>>>
>>> 73 Dave
>>> K4D #286
>>> KPA500
>>
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